can i use this at dc voltage if so i have the layout of the board just got a few questions
1st i know the value of the resistors but are the watts of it is .25 or .1\8 w
2nd c5 and c3 are these non polarized caps like the 104
and there is a chinese d2030a also
i have bout 4 of the tda 2030 and 10 of the d2030 can both be used as the same of is the d2030 weaker
http://www.eleccircuit.com/wp-content/uploads/2009/11/circuit-tda2030-amp-otl-15w.jpg
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Generally, if the wattage of a resistor is not mentioned in datasheet, schematic, or footnotes, then the mystery resistor is assumed to be 0.25Watt.
A good starter project is the car chip, like these: 12vdc gainclone. <<<Click here to see builds with these.
There is a gigantic list of chips that can all work at 14.8vdc (a car that is running) and conveniently by a Toshiba 15v 90W laptop replacement power cord pack, which are about $9 on ebay. We take the 90W and divide it in half, since no switching technology can survive use at its advertised output, so then 45W power supply, and the car chips do up to 22W per channel to 4 ohm speakers, aka 44 watts. Not bad for a $9 power supply and a $7 chip amp. This is the easiest and lowest cost way to build an amp.
Here's some car, truck, and "compact home stereo" chips:
TDA7292
TDA7265B
TDA7265
TDA7269
TDA7576
TDA1521Q
TDA1554Q
TDA8561Q
TDA1560Q
TDA1562Q
tda1554
tda1554q
tda1557
tda1557q
tda7386_07
tda8563aq
tda7377
tda7560_05
tda1563q
tda1516bq
tda7389
tda8564q
tda7375a
pa7375
nte7163
la47202p
la4905
la4625
la4628
ta2020
ta2021
Hopefully, you can get access to a computer soon, because you're going to need some of those PDF datasheets to find out more about these chips. I suggest to start by checking availability to make a shorter list, and then look up all the datasheets, projects and details for the available chips.
P.S.
If you don't enjoy reading, or if it is not possible to do the research, then, in that case, I suggest that you purchase an amplifier kit.
A good starter project is the car chip, like these: 12vdc gainclone. <<<Click here to see builds with these.
There is a gigantic list of chips that can all work at 14.8vdc (a car that is running) and conveniently by a Toshiba 15v 90W laptop replacement power cord pack, which are about $9 on ebay. We take the 90W and divide it in half, since no switching technology can survive use at its advertised output, so then 45W power supply, and the car chips do up to 22W per channel to 4 ohm speakers, aka 44 watts. Not bad for a $9 power supply and a $7 chip amp. This is the easiest and lowest cost way to build an amp.
Here's some car, truck, and "compact home stereo" chips:
TDA7292
TDA7265B
TDA7265
TDA7269
TDA7576
TDA1521Q
TDA1554Q
TDA8561Q
TDA1560Q
TDA1562Q
tda1554
tda1554q
tda1557
tda1557q
tda7386_07
tda8563aq
tda7377
tda7560_05
tda1563q
tda1516bq
tda7389
tda8564q
tda7375a
pa7375
nte7163
la47202p
la4905
la4625
la4628
ta2020
ta2021
Hopefully, you can get access to a computer soon, because you're going to need some of those PDF datasheets to find out more about these chips. I suggest to start by checking availability to make a shorter list, and then look up all the datasheets, projects and details for the available chips.
P.S.
If you don't enjoy reading, or if it is not possible to do the research, then, in that case, I suggest that you purchase an amplifier kit.
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Sir daniel thanks for your help that info has open my mind more jus a few more questions with my build that i am doing Because i have a few tda 2030 chips i dicided i will build this 1st
can u tell what C5 c3 are if these caps have a positive and a negative
If they are negative where do i connet the negative side
can u tell what C5 c3 are if these caps have a positive and a negative
If they are negative where do i connet the negative side
C5 and C3 are non-polar caps.
P.S.
On polar caps, the stripe is the negative side, so just always point the stripe away from the positive rail--point the stripe towards the most negative rail (stripe towards lowest voltage).
Single rail looks like 1 flashlight battery, super easy to do (also really inexpensive access to SMPS and regulated power).
Split rail looks like the common 2-battery flashlight that has 2 batteries in series, a positive end, a negative end and then centerpoint is 0v.
P.S.
On polar caps, the stripe is the negative side, so just always point the stripe away from the positive rail--point the stripe towards the most negative rail (stripe towards lowest voltage).
Single rail looks like 1 flashlight battery, super easy to do (also really inexpensive access to SMPS and regulated power).
Split rail looks like the common 2-battery flashlight that has 2 batteries in series, a positive end, a negative end and then centerpoint is 0v.
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